Pulverizing-machine.



E. E. WANN.

PULVERIZING MACHINE.

APPLICATION FILED 121113.19, 190e.

.9.L w 7.,@ f Wm 0 f Dm im Y mm m w e u J E. E. WANN. PULVERIZING MACHINE.

APPLICATION FILED FEB.`19,190B.

Patented Dec. '7, 1909.

s sHEBTssHEET V2.

E. E. WANN.

PULVERIZING MACHINE. APPLICATION FILED PEB.19,1906.

942,424. Patented Dec. 7, 1909. 3 SHEETS-SHEET 3.

l ELTGN `WAE\TN, OF

LOS ANGELES, GALIFORNA.

mnxviozme-MACHIN .ttpplcaton fled February tinit'ed ntnte', reaidingzlt; 111 the eonnt)v ol 111i .ingelogt 11C 1 1 11111el1 the pulverizatiou of 1.1 1111 111 nifeoinplinlnftl 11.11' itsintroduitH 'tion het 1 two g1-111111115@v Surliuees, opernt l 111:111111 the innller 1.11111e1ple; 11nd 111111111@` the 11.1111151111; 1' invention 1re the 'lollowingz I .t5 'To 1'11'01'1110. 1121151111111 that'` will rnpidly pulnerr/:e ores. mine"- h', roelis 111111 eztrth)v 51111- snneeS tlm; here :111 1, tlv pus-fed throulgh the 1 sizing' :t: coursier 1:13111 111g;y z1r1x1pttrntu. '1`o provide :1 1'ee,'e1't11, positive 111.111 direct. (lietrihntion oll the nntteriul to he pulvtrizce. tio the '1111111119 charge o't'vthe 1111111111111 :'l'tei' pulverizntion fron. the grinning urlznzen. ",l'o provide'n, '1 1 1111 the. working pnrtrs :1re

111111111111111 111 11111 -nutenrtnnfnll'v :111111511111111 11u11 111 which the Innllevdieh :1111.1 th'I .-l1oe.s` connected thereto7 ""Lher with t1 device lor incre-tuning their 1t', :1re o? suilieient. u'tigglit to instantly the eo11neetio11f-,y hetween the l 111111111111111 11'111 permit'. olf inden y nent/1111111111 11ov11111e grindu'rp; t0 51117111 :ere 111111 1.1 'A .111 t 111 the Hurlnew ot' hetlte plut 1 .111. runt111 e^s11rtl :1n-1.

t t l. lilo provide 11 111111111111: 111 which the los el' 'iened 11.1v the 11311111' ol the n1 :1n eronotnieul 111111111111'. "ovitle 11 1111111111111; which 1 111 optu'fu.111119 durnhle 111 zo11 -truet1o11 1111111511 no t nsive purl 1H etthjeetetl 'te went' exet t the :11:1.11111 j'intling 911111111111' :'etuuphtrhtheve oh'jeet hy the .111.111 the herein :1n iltuetru .f1 t1' (levier. dan.

1111, vertical motion ehiue'.. F1o'. 2 1 e with ps1 111V Specification of Letters Fatent.

1" tellt'or'nin. hnve invented newv11:1 ol 5111111115, rolle or other '111e 11111111.1111'. to provit'le :1 11111" `-urtiu'esl 11nd the rotating the moes ntientied Bet', "E, '19119.

te, 1906. serial No. 301,923.

l 111 plnee on the die. plnte. Fig. 1- 1S i1 flel tailed elevntion of the shoe4 11nd die plate in l their .111ernt11'e position." Fig. 1" is 11 plan \'1e'-.\' of the die plete with pnrt'sln'ohen :11 'ay to ehow the lr-.elting menus. 151g. 71- is n trnnsverrst detail Section through the driving 111111 ports. Fig; ttm-1s 11n inverted perspective View of one' ot the Sections of the die t plnte. l l i liefert-ing to the drnwin j heee-plete secured to vleetV 1 tranne 111,11 of t'i11'1l1ers. 7.

i prelerithlv eolie-.1111111111111 (in order .to lneili- 1 tute the proper d1.'-tr1hntion :1ndA diselinrgz'e l o t' pulp :1sA will 11e hereina'l'ler explained.) l 11nd 1111511 111111 t3 through wlneh pnssesvn verl 1111111 driving shaft fl. .lhe lower enel ol.E thi# F1111 txt rents 1n n Step hearing lO secured to :1 erosh` 11111110.17 '11. Secured to the lower end of this shntft hiv lieve l2.. :1nd held 111 place thereon h v collars 151,

` 1v-l1ielrn`1eel1es with :1 dining beveled pinion l 1.1 which 151 sepured 1111.11 hey 1G on the lnner end ot shalt. 1t whieh 1s mounted n1 Suitable :hearings 1S.

l :1re 'tnst 11nd loose pulleys 20, one of which l 1S suitably connected to f1 source of po1ve1 1 tnot shown).

Secured to the outer end of Shaft') is 21 driving sleeve 2l. having vertical Slots 22 which reginter w1tl1 :11111 engtie'e lugs 223 on the inn-er fuee of the .111111 .Q1 of the nulll'er i dishr 271. Thismullet-1111111 is--eone-shnped11nd 11.1 provided on ithA under luce with :1' plurality ot projections 5213 which correspond in nuznher with n. plurality of tlzuiged pocli'etel or sockets 27, open on one Side 11nd secured to the upper face of t1 plurality of lnovnble grinding shoes l`he under fece (1f-these yhoes 11nd the upper iuee, of the die plete Q9, together 'toi-1n the grinding zone ot the 111:1 ehine rthe (11e plnte .29 is eo111poSed of sectionl Q9, on the under nee of which 'project :1 11111111.1111' of dove-tailedvw'edgel'mped lugo` $10 11l111'f11'1eg1ste1' with 11 like 111111111111' of dovetniled wedge-shaped reeeSseS 3l in the hasel plate :T17 the dove-tailed sides ol the recesses 111.11111111111111; nenrits lurger end to permit the entrnnee thereto of vthepdove-'tniletl lugs 31111, hy these ineens the die plates :1re rigidly held 111 plztee 011 the heee-plete of the-v ehine.

ln'eh die-plate'Seeton has on its outer eornerS 21 tongue 31"'11ntl :11nopen1ng 3l into which vthe tongue of the adjoining plate lits,

U11 the outer endy of this shaft.

11 hevel geur 141 'l 40 the entrain 50 muller disk' and shoes 60 additifnial weight required.

the purpose ot' which is to prevent any material escaping through the joint formed by the die plate sections into the launder without' lirst being pulverized.

31 preferably of wood interposed between them so as to form a' tight joint. l

Projecting upwardl from-thelfaee of the base-plate and near its hub lis an annular flange 32 to which is secured a 11i-m 33 whose upper end is bent inwardly as at 34 and forms an annular distributing chamber 35 whose function will be hereinafter described.

Concentrically disposed around the outer edge of the mnllcr disk hub 24 are a inunber ot' vertical cylindrical openings 236. Delivv ly tubes 3'( are fitted in openings 3G and extend dowrnvardly to within a short distance of the distributing chamber, into which the 2O material to be pulver-ized is delivered. The

upper ends ot' these tubes are screw' threaded and engage with a like number of screwv threadedopenings at in :1 ring 3S to whose periphery and perimeter are rigidly at- 7-5 tached cylinders 23S) and l0, which together form a cylindrical passageway to the deliverytubes. Cylinder Lt() has a conical ca 4l 0n which the material to be pulverized alls from the funnel 42, the conical cap evenly distributing it to the deilvcry tubes.

Extending.downwardly through the funnel 42 and through the corneal cap #ll to the shaft t) islan oil delivery tube -l on whose outer end is scetned an oil cup ll by means of which the shaft bearingsI are supplied with a lubricant. rlhc oil delivery tube is incased in a tube 45 which passes downwardly to the conical cap ll and in screw threaded engagement the with to prevent ot grit and vater to the bearings and oil ways in shaft 9.

An annular weight increasing tank -l-'r' has a central cylindrical opening 48 larger at its inner end so as to fit over the hub of the mul- 45 ler disk, and which serves to retain the. tank required to replace the total weight lost by wear of shoes, so that if ore should be intro: duced that is too hard to be instantly crushed by n'iuller weight' alone then water 'may-beadmittcd to the tank 47 to supply the 5l is located in'the bottoni ol the tank.

.Detaehably secured to a'downwardly extending tlangc o2 on the outer rim ot` the basfplate, is a sheet iron annular launder 53 whose bottom inclines downwardly to the The joints 5 formed by the die plate sections have a strip A water outlet linal 'discharge spout 54. As the launder is detachable the spout may be located at any convenient point around the machine.

teferring again t0 the annular distributing chamber 35; this cha'mbei` receives the material fed to it by the delivery tubes 37 which are located directly over it. the chamber. becomes filled it overflows in all directions into an annular distributing channel 55, wliich delivers it by.y means ot the channels 5o to the grinding vzone of the machine.

',lhc die pla te of thc machine consists of a number ot sections held in place on the baseplatc (as previously explained) and extend to within a .short distance ofthe wall ofthe diS- tributing chamber.- This space between the inner end of the die plate and the outer wall of the distributing chamber 35 forms an auxiliary distributing channel '50, which serves two purposes, namely; tirst as a small reservoir which will permita partial if not a` vcomplete :settling of the pulp received from distributing chamber 35, so that nlost otl the water and iinest part (slimes) of pulp will enter the channels 5G' in ad rance ot the .heavier and larger. part of pulp and wash -ontl the material ground by machine to the 'prop gr fneness. Second to soften'or break the 'all 'of th'c material overllojmg trom distributing chamber 3a and prevent it trom splashing over the flanges; on the shoe.

The movable grinding shoes S28 (here shown as eight in number) are so formed that when put in pla-ee on the die 1)late that the space between them will torni distributing channels Siti. plrlerabltv curved. The arrangement ol. these `channels is the most radical and distingui hing :Feature of my machine, in that they are located on an angle, ,c

from the radial lines ot the machine which recede toward theperiphcry in the direction of .inuller travel. ln all other machines of this type the distributing channels have been either radial o' on anangle vwhich reccdes toward the eirnmtercnce as you look back from the direction in which the shoes travel. This shoe space angle in connection with the provision made Vtor a free apdpositive discharge of pulver-ized material (which is only made possible by use of a' base plate without a rim and which will permit a downward discharge 't'rom grinding arca) are the vital points in a machine ot this character, and

which rcnder it possible to produce a machine which will not only have an `exee tionally large grinding capacity but wil-l' e positive in the matter of maxinuun size of any particle of ground product without screening and returning the over-size to be regi-ouml. lhese shoes have beveled edges 57 andSJhc front edge 58 overhangixrg so that when the material liows t0 the 'Channels between the shoes it will be swept and overv ridden by the advancing shoe 1n the ptlt 'So as to insure an eren 'and 55, from thence it lng shoe rapidly through a xgreater on' '1n other words the baseji'ilate vmachines having the muller of the pulverizing Zone` 'fno upper edges and the inner end adjacent to the distribution chamber 35 ot the alioeeare provided with flanges 59., the, purpose oi which ie to prevent the overflow 4ol5 the material over the Shoes as they Wear.

The flanged pockets 2T on the upper side of each shoe (here Shown as three-in number) which engage the arms or projectionsf4 ot the rotatingniuller 'diln Yhave an opening 61 in their rear in order to 'facilitate the removal of worn out Shoes; and the rel'ilneenient ot new ones. ylfhey are intended to tit snugly on Laide nearest the center oi' the inachine in order that tl may hare a tirar bearing and eo Ythat -tl'ie hoes cannotnio-:e outwardly by centry but will be heldthere inl proper in so 'tar that force concerned.

It will be seen troni the draw'ings'lhest Shown in Fig. '1) that l lia-re given the pulverizing Zone a downwz rd inclination toward the circumference in order to accelerate the flow ot' the incoming; material through the feeding spaces between the sheen Supply of unground material to the outer part of the grindiigig zone. This inclined plane terminales in a Short horizontal plane G0, a, 'tow inches?4 from the circumference which nerven to prevent any larger or lighter particles troni rolling out unground.

rilhe operation ot the n'iachinel tollows:- l?ower is applied to the machine and the material to he ground is ted to the ,tunnel lQ'and through the pipes il? to the dietributingchainber l5 overtltnvs when lilled to the anrnilar distributing channels 5l) flowsy {')ulwardly through the curved channelsi 5G t'ornxcd by the shoes Q8. The inetanty the niaterial enters these channels it. is retardH ed by the overhanging edge ol the advancing'shoe, and as it proceedel flown Yardly and outwardly the curved front oi' the advancprecedenI the pulp tlow and heads it ott long before it can reach the discharge point'nntil all has been swept, under the outwardly inclined grinding sur faces and pulverized,` thence it is delivered from all parte of the grinding Surface to the annular launder 53, from which il 'ies car- `ried out 'ardly through discharge spout 51.-.

When the pulverized material has reached the discharge point at the circum- Jference there is no obstruction whatever to its immediate fall into'the oilA heal-inw laun der, Whereas in all other muller `'riruliny,` machines the pulverized material must risc leen depth of 'apidly moving material to the top and rini ol niachine sides before it can be discl'iarged either through a riin spout or by riin orerlow, all other `principle is l Simply the bottoinoii a tank or vessel which kept Filled with pulp 'when the machine is 2in operation, and all material discharged l 'troni auch. machines iS only'that which by reason otite` being very light riseeA through l the swiftly moving ninfas: ot pulp to the top where it is discharged in manner aber@` de.- 4scribed, and an it frequently happens the Vary lightestparticles may be the largest, reo that the older machines are not Sizing' niachinefs because the larger particles it lightest have no chance whatever to reach the pulverizing cone.

"lla'i preif'ent. any discharge otl material.

i 'nu t'ie channels; 5o withoutY tiretI subjecting the nidu'ig action the outer ende ol :ioes .nay be lapped the same as the end et the die plate tl'iereby forming additional sate guard.,

will thus he eeen t'roin the foregoing leecription that l have produced an eiiicient machine, simple in construction and durable in operation and which has an unusually large g; nding capacity. y

having described my invention what l -claim an new and desire to secure by Letters l Patenty isz*- -l. in 1r pulveriz/,ing machine, a hase-plate; a die plate4 secured thereon; a plurality ol i movable grinding l@hoes renting on said die 5 plate, 'the iront and rear edges ot adjacent movable grinding shoes forming a radial curved channel; and means to rotate Said grinding shoes. y V

ln a machine ot the character herein described, a traine; a baseplate having a dmvnwardly and outwardly inclined si J 'tace seein-ed to said trame; a sectional e'. plate secured in locked engagement on Said base plate; a plura ity of movable grinding shoes restingl on said die plate, the front and rear edges ot adjacent ehoes "forming a feed channel; means to rotate said grinding shoes, comprising a downwardly and out \\'ardly inclined rotatable disk; a plurality of projections on the under face ot Said disk, said projections adaptedto engage sockets on the upper faces ot said shoes; a centrally di-;posed huh on Said disk having a plurality ot vertically diaposed luge on its inner face; a d wing shaft mounted in said traine; a driving sleeve keyed to the outer end of said driving shaft? said sleeve having a plurality or x-'ertically disposed slits therein adapted to engage the luge on the disk hub; and means to rotate said shaft.

in a `pluVerii'aing machine a base plate; a din plate Secured thereon; a plurality oit movable grindingl Shoes having their upper iront7 rl r and inner edges provided with tlangijea, restingv on saiddie plate, the 'front and rear edgefj` o'lf adjacent shoesy toi-ming a curved vieed channel; and moanav to rotate Ahuid Shoes.

Yl. ln a pulvei'izingl niachine, a baseplate;

a sectional die plate removably secured to said base plate; a plurality of movable `grindingI shoes resting on said die plate, the front and rear edges ot adjacent shoes form ing a curved lleed channel; a centrally disposed teed way teriuinatiiig in aplurality ot discharge pipes; an annular distributing handler located below said discharge pipes and conununicating with said feedJ Channels; and means to rotate said shoes.

lila a machine of the class described, a

:tiran/ie; a base plate secured to said frame;

a die plate rtm'iovably secured to said base plate; a plurality of movable grinding shoes resting on said die platev` the front and rear edges of adjacent hoes forming a teed channel; a centrally Adisposed feed way communieating with said feed channels; a centrally disposed vertical driving shaft; mounted in said frame; ay muller disk secured'to the outer end ot said shaft and vertically movable thereon, said disk being in adjustable engagement with said shoes; a weight tank secured to said muller disk; means to keep the weight. ot said ta'nk constant g and means to rotate said shaft.

6. ln a machine ot' the class described, a frame; a base plate; a die plate reu'iovably secured to said base plate; a plurality of movable grinding .shoes resting on said die plate. the front and rear edges of adjacent Shoes forming a feed channel; a centrally said tank constant; an annular launder secured to said base plate adapted to receive the discharge from the feed channels formed by the grinding shoes; and means to rotate said shaft.

7. In a pulverizing machine, a frame having a base plate rigidly seemed thereto; a die plate removably attached to said base plate; a plurality ot movable grinding shoes having beveled front and rear edges resting on said die plate, the troutI and rear edges of each two shoes forming a radial curved channel; andmeans to rotate saidl shoes.

In witness that 'claim the lforegoing I have thereunto subscribed my name this 13th day of February, 1906.

EUGENE ELTON WANN.

Witnesses: I i

linnen) A. STRAUSE G. E; HaRPHAM. 

